[jira] [Created] (IGNITE-15033) AssertionError: Unexpected rebalance on rebalanced cluster

["Vladislav Pyatkov (Jira)" <ji...@apache.org>]

Vladislav Pyatkov created IGNITE-15033:
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             Summary: AssertionError: Unexpected rebalance on rebalanced cluster
                 Key: IGNITE-15033
                 URL: https://issues.apache.org/jira/browse/IGNITE-15033
             Project: Ignite
          Issue Type: Bug
            Reporter: Vladislav Pyatkov
            Assignee: Vladislav Pyatkov


It has low probably that partition state restored incorrectly when a cache is starting with data on disk.
The issue happened because cluster can save the partition meta page during it state is still restored.
The code is shown below (GridCacheOffheapManager.java):

{code:java}
@Override public Map<Integer, Long> restorePartitionStates {
  //Here the metapage was restored from disk, but it state is not recovery in GridDhtLocalPartition.
  part.dataStore().init();  
  ... // Here another thread will be able to execute saveStoreMetadata and set an incorrect state on the metapage.
  //State will be recovered only here.
  long pageAddr = pageMem.writeLock(grp.groupId(), partMetaId, partMetaPage);
  try {
    int stateId = io.getPartitionState(pageAddr);
    updateState(part, stateId);
  }
  finaly {
    pageMem.writeUnlock(grp.groupId(), partMetaId, partMetaPage, null, changed);
  }
}
{code}




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